3.2 Why Exogenous Carbohydrate Cannot Be the Primary Entry

Exogenous Carbohydrate Load changes glucose scheduling and Insulin Regulation State. In Feline FBM it cannot be treated as a neutral primary entry for feline long-term energy operation.

This is not about “one bite of carbohydrate is poison.” It is about long-term substrate dominance: repeated exogenous carbohydrate as the main entry pushes glucose scheduling and reduces stable fatty acid oxidation.

Backtrace always returns to upstream food structure, not to moral judgment about a single meal.

Entry-load variable from external food input.

Insulin occupancy affects whether fatty acid oxidation pathway stays active.

Substrate class that carries long-term energy operation.

Pathway suppressed when glucose scheduling dominates.

upstream food structure with high exogenous carbohydrate load

↓

glucose scheduling pressure

↓

elevated insulin regulation state

↓

fatty acid oxidation pathway less stable

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long-term outputs across digestion, urinary, and skin-coat systems

Scheduling dominance may appear as loose stool, urinary concentration, or skin-coat instability—observable outputs for backtrace, not root causes.